Melt buter in a 10 in skillet over medium heatAdd mushroom, onions, and garlic stirring occasionally until onions are tenderRemove from skilletCook beef browning on all sidesStir in one cup of beef broth, salt and worcestershireHeat to boilingReduce heat, cover and simmer 15 min(At this point you can put into crock pot with vegetables and slow cook all day)Stir remaining broth into flourStir ito beef mixtureAdd vegetables back into beef and heat to boiling stirring constantlyBoil and stir 1 minuteStir in sour creamHeat until hot but not boilingServe over noodles